Environmental health: practice question

A PSM question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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PSM · Environmental health

Sample item

A community program removes discarded containers and covers stored water to reduce which mosquito-borne disease vector?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

C. Aedes mosquito

Aedes mosquitoes commonly breed in artificial water containers, so source reduction by removing or covering such containers is central to dengue vector control.

Option by option

  • A. Tick

    Ticks are arachnids and do not breed in stored-water containers.

  • B. Housefly

    Houseflies breed in waste and are not the target of container-based mosquito control.

  • C. Aedes mosquito (correct)

    Correct: Aedes breeding is reduced by eliminating domestic standing-water containers.

  • D. Sandfly

    Sandflies breed in different ecological settings and transmit leishmaniasis.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More PSM questions

Questions about this PSM question

What is the answer to this PSM question?

The best answer is C, Aedes mosquito. Aedes mosquitoes commonly breed in artificial water containers, so source reduction by removing or covering such containers is central to dengue vector control.

Why is "Tick" not the answer?

Ticks are arachnids and do not breed in stored-water containers.

Why is "Housefly" not the answer?

Houseflies breed in waste and are not the target of container-based mosquito control.

Why is "Sandfly" not the answer?

Sandflies breed in different ecological settings and transmit leishmaniasis.

What concept does this question test?

It tests Environmental health in PSM. The correct option holds because: Correct: Aedes breeding is reduced by eliminating domestic standing-water containers.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Environmental health?

Practise biostatistics with small calculations until sensitivity, predictive values and risk measures are automatic. Then use the flashcards and the other PSM questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.